I wouldn't trust a rotafixa'd cog if you ever want to skid again and can't put the lockring back on. Actually, it's not a good idea to go brakeless unless you loctite it on when rota-fixing it.
I use the method to tighten or remove cogs as I'm lazy/cheap to make/buy a chainwhip.
Gunnar Street Dog, Gunnar Roadie, Lotus Elan FG Conversion (in pieces), Trek 850 Antelope
Yah, wouldn't trust that w/o a lockring.
FWIW, last time I installed a cog I screwed it on the wheel and then put the cog into a vice with thick wood in the jaws. The cog's teeth dug into the vice wood deeply as planned. I turned the wheel to tighten the cog and watchd in amazement as the cog rolled the wood blocks right out of the vice. So I guess it would work if the wood was actually attached to the vice by more than just pressure.
In any case, it was tight and we just finished it up with the cheapo nashbar chainwhip. lockiring followed with the cheapo nashbar lockring tool.
Originally Posted by earjob
ah, beaten to it. i put a lockring on as well after tightening down the cog - i don't see how even the tightest cog would stay on after enough stopping w/o a lockring right?
I have actually screwed my cog off a week or so ago, and I'm brakeless. Not fun at all. It was not rotafixa'd, just ridden, and a lockring was on, but only tightened with a craptastic short wrench, so it managed to screw off somehow.
Originally Posted by dutret
Do you deny that you are clueless or do you just think that "moron" didn't need to be tacked on there?
Those guys ride brakeless and don't skid, so they must not ride very fast. Not that it happens all the time, but I like the option of bombing down a hill at full speed and skidding into a hockey-stop turn without worring about my cog unthreading in the process. Most people I ride with ride very aggressively and rely on their bikes withstanding tremendous force. If you are going to test your physical limits, doesn't it just make sense to have mechanical failure NOT be a main variable?
Word. If you must ride the suicide hub, please spend the $3.50 and loc-tite it on there. JB-Weld it if you want it permanent. And definitely ride with at least one brake. I shouldn't have to expound upon the fear that courses through you when a cog unscrews unexpectedly.
I am a suicide rider (think what you will), but I think it's a calculated risk. If you secure the cog using some fastening agent, and have a brake for backup, that risk is decreased.
Originally Posted by Dr Irwin Goldstein
Men should never ride bicycles. Riding should be banned and outlawed. It is
the most irrational form of exercise I could ever bring to discussion.